astral-sh/uv · error

Package `{name}` not found in workspace

Error message

Package `{name}` not found in workspace

What it means

Error "Package `{name}` not found in workspace" thrown in astral-sh/uv.

Source

Thrown at crates/uv/src/commands/project/sync.rs:141

                project_dir,
                &DiscoveryOptions::default(),
                cache,
                workspace_cache,
                name.clone(),
            )
            .await?
        } else {
            let project = VirtualProject::discover(
                project_dir,
                &DiscoveryOptions::default(),
                cache,
                workspace_cache,
            )
            .await?;

            for name in &package {
                if !project.workspace().packages().contains_key(name) {
                    return Err(anyhow::anyhow!("Package `{name}` not found in workspace"));
                }
            }

            project
        };

        SyncTarget::Project(project)
    };

    // Determine the groups and extras to include.
    let default_groups = match &target {
        SyncTarget::Project(project) => default_dependency_groups(project.pyproject_toml())?,
        SyncTarget::Script(..) => DefaultGroups::default(),
    };
    let default_extras = match &target {
        SyncTarget::Project(_project) => DefaultExtras::default(),
        SyncTarget::Script(..) => DefaultExtras::default(),
    };

View on GitHub (pinned to f1a42680ff)

When it happens

Trigger: Thrown at crates/uv/src/commands/project/sync.rs:141 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of astral-sh/uv@f1a42680ff (2026-08-16). Data as JSON: /api/errors/2a2eb421d58b659b. Report an issue: GitHub.